package com.example.design.patterns.geekbang.创建型.单例模式.demo;

public class OrderController {
    private Logger logger = new Logger();

    public void create(OrderVo order) {
        // ...省略业务逻辑代码...
        logger.log("Created an order: " + order.toString());
    }

    private class OrderVo {
    }
}